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SG350X-24-K9-UK
Cisco SG350X-24-K9-UK 350X 24-Port Gigabit Switch, 4x10G Upl...
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SG350X-24-K9-UK is a managed, non-PoE Gigabit access switch with 24 RJ-45 downlinks and four fixed 10G uplink interfaces. Two uplinks are dedicated SFP+ cages; two are copper/SFP+ combo interfaces, with either medium active on each pair. The 1U rack-mounted chassis belongs to the Cisco 350X Series Stackable Managed Switches and provides Layer 2+ functionality for small-business networks. Wired endpoints connect at Gigabit speeds, while the uplinks accommodate copper or fiber connections to upstream equipment. The discontinued SG350X-24P-K9-UK adds PoE+ for endpoints requiring power through their network connection; this non-PoE model serves independently powered devices. Its uplink architecture is fixed rather than dependent on an additional network card.
SG350X-24-K9-UK price is is available on request. Get immediate quote.
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128 Gbps switching capacity supports wire-speed, nonblocking forwarding across the installed interfaces. 95.23 Mpps forwarding handles minimum-size packets at the published rate. Static IPv4 routing supports 990 routes and 128 IP interfaces for communication between subnets; IPv6 static routing supports 245 routes and 106 interfaces. Dynamic routing is not part of this feature set. SG350X-24-K9-UK carries 512 MB of memory and 256 MB of flash for its management software and configuration. A dynamically shared 1.5 MB packet buffer accommodates traffic across the ports, while the MAC table holds 16000 entries. STP, RSTP and MSTP provide loop-control options, and LACP groups links. Cisco SG350X-24 supports a four-member hardware stack with unified management. Browser configuration, console access and SSH provide administration paths. 32.6W maximum consumption at 110V supplies a figure for circuit sizing; consumption at 220V is 32.5W. One fan cools the chassis within its 0°C to 50°C operating range.
ORM Systems supplies SG350X-24-K9-UK new sealed or certified refurbished; new units carry up to a 3-year extended warranty and certified refurbished units up to 1 year, with 30-day returns on every condition, terms apply. Certified refurbished units are inspected and bench-tested for power-on and POST, every port linking at rated speed, clean boot, optics bay recognition, PSU status and fan status; firmware is verified and configuration wiped to factory default. Specify the condition, required connection accessories and quantity on the purchase order for this switch. POs are accepted, government customers receive Net-30, and volume orders can use regional stock and RMA in the UK, EU, US and MEA, including advance replacement.
| Key Specs | Key Spec Values |
|---|---|
Port Configuration | 24x1G / 2x10G SFP+ / 2x10G copper/SFP+ Combo |
Stacking | True horizontal stacking / 4 members |
Max Power Draw | 32.6W |
Replaces | SF550X-24-K9-UK discontinued / End of sale June 18, 2020 |
Lifecycle Status | Discontinued October 30, 2021 / Support ends October 31, 2026 |
Replacement PID | C1300-24T-4X / CBS350-24T-4X-UK discontinued |
When an existing hardware stack needs another member, reserve the required uplink interfaces for stacking rather than assigning every interface to distribution. Ring and chain topologies are supported, with link aggregation available for stack interconnects. Specify SFP-H10GB-CU1M=, SFP-H10GB-CU3M= or SFP-H10GB-CU5M= to match cabinet spacing before the PO.
When several branches need matching configurations, text-editable configuration files and SCP auto-configuration provide a repeatable staging path. Firmware upgrades support dual images, so the retained image and intended startup image belong in the acceptance plan. Specify the configuration baseline and image selection for each delivered unit before the PO.
When a lab needs packet visibility before moving configurations into service, port mirroring supports eight source ports to one destination. VLAN mirroring and remote mirroring provide additional capture arrangements without changing the endpoint purchase. Specify the analyzer connection, mirrored sources and destination port assignment before ordering the switch.
PoE power for connected endpoints
SG350X-24-K9-UK supplies data connectivity but no PoE output. C1300-24P-4X is the current 24-port Gigabit PoE migration option with four 10G SFP+ uplinks.
Higher speeds on dedicated access ports
SG350X-24-K9-UK dedicated access ports stop at 1GbE; the 10G interfaces are uplinks. Endpoints requiring higher access speeds need a different downlink configuration.
Fanless operation in occupied rooms
SG350X-24-K9-UK uses one fan, with acoustic noise reaching 49.3 dB at 50°C. The chassis therefore does not meet a fanless installation requirement.
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| SG350X-24-K9-UK |  SG350X-48P-K9-EU |  SG350X-48-K9-NA |  SG350X-48PV-K9 |  SG350XG-48T-K9 | |
|---|---|---|---|---|---|
| Depth | 257 mm | 350 mm | 257 mm | 350 mm | 450 mm |
| Ethernet Technology | Gigabit Ethernet | Gigabit Ethernet | Gigabit Ethernet | Multi-Gigabit (2.5G/5G) | 10 Gigabit Ethernet |
| Flash Memory | 256 MB | 256 MB | 256 MB | 256 MB | 256 MB |
| Form Factor | Rack-Mount 1U | Rack-Mount 1U | Rack-Mount 1U | Rack-Mount 1U | Rack-Mount 1U |
| Height | 44 mm | 44 mm | 44 mm | 44 mm | 44 mm |
| Manufacturer Part Number | SG350X-24-K9-UK | SG350X-48P-K9-EU | SG350X-48-K9-NA | SG350X-48PV-K9 | SG350XG-48T-K9 |
| Memory | 512 MB | 512 MB | 512 MB | 512 MB | 512 MB |
| Power Consumption | 32.6W at 110V / 32.5W at 220V | 492.3W | 51.6W | 916W | 272.6W |
| Switching Capacity | 128 Gbps | 176 Gbps | 176 Gbps | 240 Gbps | 960 Gbps |
| Weight | 4.32 kg | 5.82 kg | 3.73 kg. | 5.95 kg | 7.43 kg |
| Width | 440 mm | 440 mm | 440 mm | 440 mm | 440 mm |
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SG350X-24-K9-UK identifies the 350X Gigabit stackable model with 24 non-PoE access ports and four 10G uplinks. SG350X is the model family, 24 identifies the access-port count, and UK is the regional ordering suffix. UK covers the United Kingdom and several other markets; retain the complete identifier on the purchase order.
SG350X-24-K9-UK supports a web UI over HTTP or HTTPS, full and menu CLI access through the console or SSH/Telnet, and SNMP management. Additional administration tools include Smart Network Application and Cisco FindIT Network Manager, with an embedded FindIT Network Probe. Active Advisor supports inventory visibility alongside these configuration paths.
SG350X-24-K9-UK is discontinued, with end of sale on October 30, 2021 and last date of support on October 31, 2026. Software maintenance ended October 30, 2022. CBS350-24T-4X-UK was its replacement but is also discontinued; the forward migration chain now ends at C1300-24T-4X for new purchases.
ORM offers SG350X-24-K9-UK new sealed or certified refurbished, with up to 3-year extended warranty for new units and up to 1 year for refurbished units. Returns are 30 days on every condition; terms apply. Cisco's limited lifetime hardware warranty is separate, with Cisco service ending October 31, 2026.
Cisco SG350X-24 replaces the discontinued SF550X-24-K9-UK, moving its 24 access ports from 10/100 Ethernet to Gigabit Ethernet. The older model reached end of sale on June 18, 2020. SG350X-24-K9-UK has subsequently been discontinued too, so a fresh migration purchase should follow the chain to C1300-24T-4X.
SG350X-24-K9-UK provides four fixed 10G uplink interfaces: two dedicated SFP+ ports and two 10G copper/SFP+ combo ports. Each combo pair uses either its copper connection or its optical cage, not both simultaneously. Fiber connections require compatible optics such as SFP-10G-SR= or SFP-10G-LR= selected for the installed fiber.
A 350X hardware stack contains four members and operates as one managed system. Supported arrangements include ring and chain connections, with 10G copper or fiber interfaces used for interconnects. Hybrid stacks can combine SG350X, SG350XG and SX350X models; allocate the stacking interfaces before assigning the remaining uplinks to network connections.
Yes, SG350X-24-K9-UK routes between VLANs using static IPv4 and IPv6 routing. IPv4 capacity is 990 static routes and 128 IP interfaces; IPv6 capacity is 245 static routes and 106 interfaces. Routed interfaces can be associated with physical ports, link aggregation groups, VLAN interfaces or loopbacks, rather than requiring dynamic routing.
SG350X-24-K9-UK uses an internal universal AC power supply accepting 100-240V AC at 47-63 Hz. Worst-case consumption is 32.6W at 110V or 32.5W at 220V. The non-PoE model does not include an endpoint power budget, and its power arrangement does not provide a second internal redundant supply.
Yes, Cisco SG350X-24 has a 1U rack-mount chassis measuring 440 mm wide, 44 mm high and 257 mm deep. Weight is 4.32 kg, and the original package includes a mounting kit. One fan provides cooling, so rack placement must accommodate airflow rather than treating the switch as fanless desktop equipment.
SG350X-24P-K9-UK adds 24 PoE+ access ports with a shared 195W budget, while SG350X-24-K9-UK provides no PoE output. Both models are discontinued. The non-PoE configuration suits existing installations with independently powered endpoints; the powered configuration addresses like-for-like replacement requirements where devices receive power over their network connection.
SG350X-48-K9-UK has 48 Gigabit access ports, compared with 24 on SG350X-24-K9-UK. Both non-PoE models are discontinued. The 24-port version suits replacement orders for smaller existing access panels; the 48-port version fits established installations requiring twice the endpoint density without selecting a powered-access configuration for the replacement unit.
C1300-24T-4X provides four 10G SFP+ uplinks, while SG350X-24-K9-UK combines two dedicated SFP+ uplinks with two copper/SFP+ combo interfaces. C1300-24T-4X is the current forward migration choice. The older configuration suits existing replacement requirements involving copper uplinks; the successor suits fresh purchases specifying four optical-format uplink connections on the switch.
United States
